Table 4.6 Dolphin encounter rates (sightings per 100 km of survey effort) during the impact monitoring period (June to August 2017)

Survey Area	Dolphin Monitoring	Encounter rate (STG) (no. of on-effort dolphin sightings per 100 km of survey effort)	Encounter rate (ANI) (no. of dolphins from all on-effort sightings per 100 km of survey effort)
		Primary Lines Only	Primary Lines Only
West Lantau	Set 1 (June 9^th)	16.0	37.3
	Set 2 (June 21^st)	4.7	28.3
	Set 3 (July 4^th)	9.3	28.0
	Set 4 (July 13^th)	11.1	22.2
	Set 5 (August 8^th)	0.0	0.0
	Set 6 (August 14^th)	11.8	23.7